If that's the place I'm thinking of, with a well known purchasing manager. The price was for forum members only and at that they only had 10 to go round. Not really fair comparison.
I can't say I know for sure but assuming I know where that would be, the price alone should tell you EXACTLY what price they get them in for at cost, and therefore let you know EXACTLY how much retailers make from marking up, basically a ridiculous amount.
I've always found the retailers cut absurd compared to AIB's and AMD's cut.
OCUK were probably making a far bigger profit per 260gtx sold than Nvidia, mostly because Nvidia were making nothing and OCUK were making a 10-20% profit.
As for Specs, a site that shows one image, and draws 98 conclusions from it is, well, painfully stupid.
THey've assumed the 480gtx is 512sp's because its been rumoured for so long, they are taking the few specs from that slide and ADDING them to "known" information and classing it all as confirmed.
The 512/448 is not at all confirmed, the slide is very likely real and Nvidia/AMD simply do not exclude TDP from slides. They'll sell maybe 2million cards to OEM's for every 20k sold to retailers for end users to buy, thats how graphics cards work. Every launch always has slides just like that listing some basic specs, they would never in a million years not list power usage.
Keep in mind that VRzone are very much a news reporting website, they never ever have exclusives, they aren't reporters, they get links in their e-mail and post them up as news, most sites do that. They might draw the odd conclusion from stuff they are linked to, sometimes they'll be right, sometimes wrong. They aren't the type of site that gets leaked info from Nvidia engineers or partners though.
It's also painfully stupid to announce they've received the final specs, while not mentioning clock speeds(and quite possibly having the SP's incorrect). A 20k shader card with 2048bit memory bus, at 3Mhz, would be soundly spanked by a, I dunno, gt220. A 256sp card with 256bit memory, at 3Ghz, would soundly spank what Fermi is likely to be. Clock speeds are half the equation in terms of specification, you don't have them then you DO NOT have confirmed specs, at all.